CN214190019U

CN214190019U - Dual-fuel power container transport ship

Info

Publication number: CN214190019U
Application number: CN202022639827.0U
Authority: CN
Inventors: 莫中华; 葛沛; 刘灿波; 李林海; 陆明锋; 周井华; 叶祖东; 郑金伟; 陆海泉
Original assignee: Nantong Cosco KHI Ship Engineering Co Ltd
Current assignee: Nantong Cosco KHI Ship Engineering Co Ltd
Priority date: 2020-11-16
Filing date: 2020-11-16
Publication date: 2021-09-14
Anticipated expiration: 2030-11-16

Abstract

The utility model discloses a dual fuel power container transport ship, including hull, residential area, cabin canopy, fuel tank, LNG filling station, LNG fuel tank, gas treatment facility room, control main valve department, ventilative tower, the hull adopts the design of two islands. The utility model has the advantages of having solved the problem of arranging of dual fuel power container boats and ships, the current spatial arrangement LNG fuel tank of make full use of boats and ships makes the container volume reach the maximize, has realized the application of dual fuel power on large container boats and ships.

Description

Dual-fuel power container transport ship

Technical Field

The utility model relates to a boats and ships technical field, in particular to dual fuel power container transport boats and ships.

Background

With the increasing strictness of global maritime boundaries on sulfur emissions requirements, more and more regions are or will be demarcated as emission control areas. The sulfur emission control division will impose an emission limit of 0.1% sulfur content beginning on day 1 of month 2015, and the general sea area in the world will also impose an emission limit of 0.5% sulfur content in 2020. In addition, according to the ship energy efficiency specification formulated by the IMO, international sailing ships need to meet new energy efficiency standards, EEDI is an index for measuring the levels of ship design and building energy efficiency, namely, carbon dioxide emission calculated by fuel oil consumed by propelling power and related auxiliary power required when the ships are sailed at a certain sailing speed in a designed maximum cargo state, and the ship energy efficiency specification specifies EEDI reduction rates of four stages based on a regression average value of the existing sample ships, wherein the EEDI reduction rate requirements of container ships are 20% from 2020 to 2024 and 30% after 2025. Shippers must take various measures to meet the requirements of global, regional, and local regulations. While large container ships operate mainly on trade routes between asia and europe, asia and america, ports in developed countries such as europe and the united states of western europe have strict discharge requirements for berthing ships. Therefore, the clean energy Liquefied Natural Gas (LNG) is used as fuel, only water is obtained after the natural gas is combusted, zero emission of sulfide and particulate matters is basically realized, and the emission of greenhouse gases and nitrides is also basically zero.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a dual fuel power container transport ship to solve the problem that proposes among the above-mentioned background art.

The above technical purpose of the present invention can be achieved by the following technical solutions:

a dual-fuel power container transport ship is characterized by comprising a ship body, a residential area, engine rooms, a cabin shed, a fuel oil cabin, an LNG filling station, an LNG fuel cabin, a fuel gas processing equipment room, a control main valve place and a ventilating tower, wherein the ship body adopts a dual-island design, namely the residential area is arranged at the middle front part of the ship body, the cabin shed is arranged at the stern part, the LNG filling station is arranged above the side of the deck of the residential area, the LNG fuel cabin and the fuel oil cabin are both arranged in the ship body below the residential area, the control main valve place is intensively arranged at the top of the LNG fuel cabin, the LNG fuel cabin is communicated with the fuel gas processing equipment room and the LNG filling station, the fuel gas processing equipment room is arranged in the ship body space below the residential area and above the LNG fuel cabin, a chimney is arranged at the upper part of the engine rooms, the ventilating tower is arranged above the top of the chimney, or two sides of the residential area or the head mast of the ship body, the ventilating tower is communicated with a safety valve release pipe, a fuel gas ventilating pipe and a ventilating pipe of a double-layer pipe outer pipe on the LNG fuel tank, the engine room is communicated with fuel gas treatment equipment, and a dual-fuel host, a dual-fuel generator set and a dual-fuel steam boiler are arranged in the engine room.

Preferably, a double-shell bulkhead and a double-layer bulkhead are arranged between the LNG fuel tank and the ship body, and a gas detector for detecting LNG leakage is arranged in the double-shell bulkhead and the double-layer bulkhead.

Preferably, the distance between the LNG fuel tank and the side inner shell is 1m, the LNG fuel tank is arranged at a position close to the rolling and pitching center of the ship and symmetrically arranged along the center line of the ship, the bilge part of the inner shell of the ship is in a step shape, the LNG fuel tank is made into an inclined bottom side wall at the bilge part of the ship, the distance between the bottom of the LNG fuel tank and the outer bottom plate of the ship is a small value of B/15 or 2m, and B is the shape width of the ship.

Preferably, LNG fuel compartment and boats and ships infrabasal plate are provided with bearing structure, bearing structure includes the fuel compartment support from top to bottom respectively, goes up laminated wood, stainless steel sheet, lower laminated wood, keypad, stopping, infrabasal plate support and infrabasal plate, and each part is closely connected fixedly in proper order, be provided with the fixing device who prevents the rolling between LNG fuel compartment and the last soleplate, the intermediate position of LNG fuel compartment and infrabasal plate, be provided with between LNG fuel compartment and the last soleplate and end the device that floats, fixing device comprises the wedge and the support that the left and right sides was arranged.

Preferably, a water spraying system is arranged on one circle of the top of the LNG fuel cabin, a smoke detector and a fire alarm system are further arranged in the LNG fuel cabin, and the smoke detector is communicated with alarm systems among a fire control station, a cabin centralized control room, a cab and gas processing equipment.

Preferably, the whole gas treatment equipment room is box-shaped, a two-layer structure is adopted, an independent ventilation system and a gas monitoring system are arranged in the gas treatment equipment room, an air brake is arranged in the gas treatment equipment room, the air brake is an airtight space formed by two airtight steel doors and an airtight bulkhead, the steel doors are self-closing doors, and sound and light alarm systems are arranged at two ends of the air brake, so that when more than one door is opened from a closed position, sound and light alarm can be given out.

Preferably, the gas treatment equipment room comprises a low-pressure fuel lift pump, an oil separator, a low-pressure gasifier, a BOG compressor unit, a liquid fuel buffer tank, a high-pressure booster pump and a high-pressure gasifier.

Preferably, a plurality of optical sensors and microphones are arranged at the periphery of the gas processing equipment room and the LNG filling station, and an emergency lighting system is further arranged at the periphery of the LNG filling station.

Preferably, the gas treatment plant is provided with a mechanical ventilation system of the suction type, the ventilation capacity being at least 30 air changes per hour.

Preferably, the LNG filling station is connected with the LNG bunker, the LNG bunker and the gas treatment equipment room through low-temperature insulating double-wall pipes, the double-wall pipes are provided with a suction type mechanical ventilation system, and the ventilation capacity is at least 30 times of ventilation per hour.

To sum up, the utility model discloses following beneficial effect has: the invention completely meets the standard requirements of the international maritime organization, well solves the problem of arrangement of the dual-fuel power container ship, realizes the application of the dual-fuel power on a large container ship, has important significance on the innovation and development of a ship power system, and has important effects on reducing the emission pollution of the ship and improving the atmospheric environment.

Drawings

FIG. 1 is a side view schematic of a dual fuel powered container vessel of an embodiment of the present invention;

FIG. 2 is a schematic illustration of the upper deck plan structure of a dual fuel powered container vessel of an embodiment of the present invention;

FIG. 3 is a schematic cross-sectional view of an LNG bunkering of a dual fuel powered container vessel of an embodiment of the invention;

fig. 4 is a schematic cross-sectional view of a support structure for an LNG bunker of a dual fuel powered container vessel in accordance with an embodiment of the present invention.

Detailed Description

The following description will be further described with reference to the accompanying drawings, which are not intended to limit the present invention.

A dual fuel powered container transportation vessel as shown in fig. 1 to 4, which comprises a hull 101, a residential area 2, a cabin 3, a cabin shed 1, an LNG refueling station 8, an LNG bunker 5, a gas processing equipment room 9, a control main valve location 4, a gas permeable tower 6 and a fuel tank, wherein the hull 101 is designed in a double island manner, the residential area 2 is arranged at the middle front part of the hull 101, the cabin shed 1 is arranged at the stern, a cab is arranged at the topmost part of the residential area 2, and the residential area 2 and the cab are arranged at the middle front part of the hull 101 and can be loaded with containers as many as possible under the requirement of meeting the visual field without making the residential area 2 and the cab very high so as to cause that the bridge cannot be passed through.

The LNG filling station 8 is arranged above the left and right side of an upper deck of the residential area 2, the LNG bunker 5 and the fuel bunker are arranged below the residential area 2, the LNG bunker 5 can adopt an IMO B type bunker or a film type bunker, the LNG bunker 5 is communicated with the gas processing equipment room 9 and the LNG filling station 8 through pipelines, a water spraying system is arranged on one circle of the top of the LNG bunker 5, and the LNG bunker 5 is connected with the LNG filling station 8 through a low-temperature vacuum insulation double-layer pipe. In the LNG filling station 8, below the LNG filling joints and any potential leak locations, a drip pan should be installed, which should be made of low temperature resistant material and should be introduced into the water curtain through a discharge pipe down and near the water surface, while the LNG bunker 5 pressure, temperature and level can be monitored at a safe location.

A double-shell and double-layer bulkhead 14 is arranged between the LNG fuel tank 5 and the hull 101, and a gas detector for detecting LNG leakage is arranged in the double-shell and double-layer bulkhead 14. The arrangement of the LNG fuel tank 5 comprehensively considers the influence of the LNG fuel tank on ship stability, fire separation and division of dangerous areas and the convenience of natural gas pipeline arrangement. The LNG fuel tank 5 is arranged in the space of the ship body 101 below the residential area, so that the internal space of the ultra-large container ship is utilized to the maximum extent, and the space of the cargo hold of the container is not occupied, and the container loading quantity is not influenced. The maximum effective volume of the LNG fuel tank 5 can meet the requirement that the ultra-large container ship uses LNG fuel on a whole course, and at least can meet the requirement that the ship navigates back and forth on a set course.

The LNG bunkers 5 are at a distance of 1m from the double hull and double bulkhead 14 and are arranged close to the centre of the vessel's roll and pitch symmetrically along the centre line of the hull 101. Due to the contraction of the contour of the bilge part of the container, the bilge part 13 of the inner shell of the ship body 101 is made into a step shape to contain more containers as far as possible, the LNG fuel tank 5 is made into a sloping bottom side wall 12 at the bilge part of the ship, the distance between the LNG fuel tank 5 and the outer bottom plate of the ship is B/15 or a small value of 2m, and B is the shape width of the ship.

A supporting structure 203 is arranged between the LNG bunker 5 and the inner bottom plate 11 of the ship, the supporting structure 203 comprises a bunker support 2031, an upper laminated wood 2032, a stainless steel plate 2033, a lower laminated wood 2034, a filling material 2035, a key plate 2036, an inner bottom plate support 2037 and the inner bottom plate 11 from top to bottom respectively, all the parts are sequentially and tightly connected and fixed, a fixing device 202 for preventing rolling is arranged between the LNG bunker 5 and the upper bottom plate 15 and between the LNG bunker 5 and the inner bottom plate 11, the fixing device 202 is composed of a wedge block and a support arranged on the left side and the right side, and a floating stopping device 201 is arranged between the LNG bunker 5 and the upper bottom plate 15.

The gas treatment equipment room 9 is arranged at the upper end of a tail deck, the control main valve position 4 is arranged at the top of the LNG fuel cabin 5 in a centralized mode, the top of the cabin shed 1 is provided with a chimney 7, the ventilating tower 6 can be arranged above the top of the chimney 7, on two sides of the residential area 2 or at one of the first masts of the ship body 101 to avoid peripheral communication equipment antennas, the ventilating tower 6 is communicated with a safety valve release pipe, a gas ventilating pipe and a ventilating pipe of a double-layer pipe outer pipe on the LNG fuel cabin 5, the bottom of the cabin shed 1 is provided with a cabin 3, and a dual-fuel host, a dual-fuel generator set and a dual-fuel steam boiler are arranged in the cabin 3.

The gas treatment equipment room 9 is integrally box-shaped and adopts a two-layer structure, an independent mechanical ventilation system and a gas monitoring system are arranged in the gas treatment equipment room 9, the independent mechanical ventilation system performs forced ventilation for at least 30 times per hour, and the gas monitoring system can directly monitor gas leakage.

An air brake is arranged in the gas processing equipment room 9, the air brake is an airtight space formed by two airtight steel doors and an airtight bulkhead, the distance between the steel doors is 1.5-2.5 m, the steel doors are self-closing doors, no door back buckle device is needed, the air brake is always kept in a positive pressure state, a gas detection device is arranged, and sound and light alarm systems are arranged at two ends of the air brake, so that when more than one door is opened from a closed position, sound and light alarm can be given out.

The gas treatment equipment room 9 comprises a low-pressure fuel lift pump, an oil separator, a low-pressure gasifier, a BOG compressor unit, a liquid fuel buffer tank, a high-pressure booster pump and a high-pressure gasifier. The low-pressure fuel lifting pump lifts the LNG fuel to the liquid fuel buffer tank, the oil separator separates fuel oil components from the LNG fuel, and the low-pressure gasifier gasifies and heats the fuel in the liquid fuel tank and then conveys the fuel to the dual-fuel generator set and the dual-fuel steam boiler in the engine room 3. The high-pressure booster pump will carry behind the fuel gasification pressure boost of liquid fuel cabin for high-pressure vaporizer, high-pressure vaporizer carries the dual-fuel host computer in for cabin 3 after with fuel gasification intensification, and BOG compressor package arranges to be located the deck, and not only ventilate well but also be convenient for maintain, still need consider the influence of its noise simultaneously, and BOG compressor package includes BOG compressor and import heat exchanger.

Several optical sensors and microphones are arranged around the gas treatment plant room 9 and the LNG refueling station 8, the optical sensors provide a horizontal view of 360 degrees and a vertical view of 180 degrees towards the circumference of the LNG refueling station 8 and the gas treatment plant room 9, and a display device of a plurality of screens arranged is provided in the bridge and the cabin 3 centralized control room, the microphones are arranged to capture sound around the gas treatment plant room 9 and the LNG refueling station 8, and the bridge is provided with acoustic transducers to reproduce sound captured by the microphones in real time, and an emergency lighting system is arranged around the LNG refueling station 8.

The gas treatment equipment room 9 is provided with a suction type mechanical ventilation system, and ventilation capacity is realized for more than 30 times per hour. The LNG filling station 8 is connected with the LNG fuel cabin 5, the LNG fuel cabin 5 is connected with the gas treatment equipment room 9 through low-temperature insulating double-wall pipes, the double-wall pipes are provided with a suction type mechanical ventilation system, and ventilation capacity is changed for more than 30 times per hour.

The invention completely meets the specification requirements of the international maritime organization, well solves the arrangement problem and the safety countermeasure of the dual-fuel power container ship on the ship, and realizes the application on the container ship. The method has important significance for innovation and development of a ship power system, and plays an important role in reducing ship emission pollution and improving atmospheric environment.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and those skilled in the art can make various modifications or equivalent substitutions within the spirit and scope of the present invention, and such modifications or equivalent substitutions should also be considered as falling within the scope of the present invention.

Claims

1. A dual-fuel power container transport ship is characterized by comprising a ship body, a residential area, engine rooms, a cabin shed, a fuel oil cabin, an LNG filling station, an LNG fuel cabin, a fuel gas processing equipment room, a control main valve place and a ventilating tower, wherein the ship body adopts a dual-island design, namely the residential area is arranged at the middle front part of the ship body, the cabin shed is arranged at the stern part, the LNG filling station is arranged above the side of the deck of the residential area, the LNG fuel cabin and the fuel oil cabin are both arranged in the ship body below the residential area, the control main valve place is intensively arranged at the top of the LNG fuel cabin, the LNG fuel cabin is communicated with the fuel gas processing equipment room and the LNG filling station, the fuel gas processing equipment room is arranged in the ship body space below the residential area and above the LNG fuel cabin, a chimney is arranged at the upper part of the engine rooms, the ventilating tower is arranged above the top of the chimney, or two sides of the residential area or the head mast of the ship body, the ventilating tower is communicated with a safety valve release pipe, a fuel gas ventilating pipe and a ventilating pipe of a double-layer pipe outer pipe on the LNG fuel tank, the engine room is communicated with fuel gas treatment equipment, and a dual-fuel host, a dual-fuel generator set and a dual-fuel steam boiler are arranged in the engine room.

2. A dual fuel powered container transport vessel as claimed in claim 1, wherein: a double shell and a double-layer bulkhead are arranged between the LNG fuel tank and the ship body, and gas detectors for detecting LNG leakage are arranged in the double shell and the double-layer bulkhead.

3. A dual fuel powered container transport vessel as claimed in claim 1, wherein: the distance between the LNG fuel tank and the side inner shell is 1m, the LNG fuel tank is arranged at a position close to the rolling and pitching center of the ship and symmetrically arranged along the center line of the ship body, the bilge part of the inner shell of the ship body is in a step shape, the LNG fuel tank is made into an inclined bottom side wall at the bilge part of the ship, the distance between the bottom of the LNG fuel tank and the outer bottom plate of the ship is B/15 or 2m, and B is the type width of the ship.

4. A dual fuel powered container transport vessel as claimed in claim 1, wherein: LNG fuel tank and boats and ships infrabasal plate are provided with bearing structure, bearing structure includes the fuel tank support from top to bottom respectively, goes up laminated wood, stainless steel sheet, lower floor laminated wood, keypad, stopping, infrabasal plate support and infrabasal plate, and each part is zonulae occludens in proper order fixed, between LNG fuel tank and the last soleplate, the intermediate position of LNG fuel tank and infrabasal plate is provided with the fixing device who prevents the rolling, is provided with between LNG fuel tank and the last soleplate and ends the device that floats, fixing device comprises the wedge and the support that the left and right sides was arranged.

5. A dual fuel powered container transport vessel as claimed in claim 1, wherein: the LNG fuel cabin is characterized in that a water spraying system is arranged on one circle of the top of the LNG fuel cabin, a smoke detector and a fire alarm system are further arranged in the LNG fuel cabin, and the smoke detector is communicated with alarm systems among a fire control station, a cabin centralized control room, a cab and gas processing equipment.

6. A dual fuel powered container transport vessel as claimed in claim 1, wherein: the gas treatment equipment room is integrally box-shaped and adopts a two-layer structure, an independent ventilation system and a gas monitoring system are arranged in the gas treatment equipment room, an air brake is arranged in the gas treatment equipment room and is an airtight space consisting of two airtight steel doors and an airtight bulkhead, the steel doors are self-closing doors, and sound and light alarm systems are arranged at two ends of the air brake and can give out sound and light alarm when more than one door is opened from a closed position.

7. A dual fuel powered container transport vessel as claimed in claim 1, wherein: the gas treatment equipment room comprises a low-pressure fuel lift pump, an oil separator, a low-pressure gasifier, a BOG compressor unit, a liquid fuel buffer tank, a high-pressure booster pump and a high-pressure gasifier.

8. A dual fuel powered container transport vessel as claimed in claim 1, wherein: the gas treatment equipment room and the LNG filling station periphery are provided with a plurality of optical sensors and microphones, and the LNG filling station periphery is also provided with an emergency lighting system.

9. A dual fuel powered container transport vessel as claimed in claim 1, wherein: and a suction type mechanical ventilation system is arranged between the gas treatment equipment, and the ventilation capacity is at least 30 times of ventilation per hour.

10. A dual fuel powered container transport vessel as claimed in claim 1, wherein: the LNG filling station is connected with the LNG fuel cabin, the LNG fuel cabin is connected with the gas treatment equipment through low-temperature insulating double-wall pipes, the double-wall pipes are provided with suction type mechanical ventilation systems, and the ventilation capacity is at least 30 times of ventilation per hour.